Unakite Sphere with a Mosaic of Green Epidote and Pink...

Pink Feldspar, Green Epidote, and Quartz — This lot features a superb Unakite sphere, sourced from the rich deposits of Madagascar. The specimen has been masterfully worked and mirror-polished to achieve a perfect spherical form, one of the most refined expressions of lapidary art. The sphere stands out for its significant specific gravity and dimensions, giving it a striking presence. More than a simple mineralogical specimen, this object represents a meeting point between geological power and design elegance, a fragment of Earth's history transformed into sculpture. Direct observation of the surface reveals a fascinating chromatic mosaic typical of Unakite. Patches of intense pistachio green, due to the presence of epidote, alternate with warm pink-salmon hues of orthoclase feldspar. Linking these two dominant colors is quartz, present in veins and translucent areas of smoky gray or milky white, which adds depth and complexity to the texture. The impeccable polish enhances the glassy brilliance of every single crystal, allowing light to penetrate and play with the different mineral components. Rotating the sphere in the hands gives the sensation of exploring a small planet, with evolving geological landscapes revealed at every new angle. Scientifically, Unakite is not a single mineral but a metamorphic rock, specifically altered granite. Its formation results from a geological process called metasomatism, during which hydrothermal fluids modified the chemical composition of the original granite. The plagioclase feldspar was transformed into epidote, giving rise to the characteristic green color, while orthoclase feldspar and quartz, more resistant to alteration, preserved their structure, creating this extraordinary assemblage. The name 'Unakite' derives from the Unaka Mountains in North Carolina (USA), where it was first discovered, but today high-quality specimens like this come from other parts of the world as well, including Madagascar. The spherical shape is rich in symbolic meaning and collectible value. Considered an emblem of perfection, wholeness, and unity, the sphere is a form with no beginning or end, enabling continuous and immersive exploration of the material. Its realization requires considerable artisanal skill to achieve a perfectly smooth surface and absolute geometric balance. This Unakite sphere thus becomes a nearly contemplative instrument, an object inviting tactile and visual observation, revealing the hidden beauty inside the rock. As a decorative element, this specimen is highly impactful. Its natural color palette, evoking moss and rocks, harmonizes with both classical and modern contexts. It is an ideal piece to enrich a library, study, or living room, acting as a focal point that stimulates curiosity and conversation. For a mineral collector or a natural history enthusiast, it represents a valuable addition to a contemporary Wunderkammer, combining the scientific appeal of a metamorphic rock with the undeniable aesthetic value of a natural work of art. Technical details Name: Unakite Classification: Metamorphic rock (altered granite) Provenance: Madagascar Dimensions: 86 x 86 x 86 mm Weight: 920 g Conditions: Natural, sphere-worked and polished. Base not included.

估價:$168.39

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